Finding the Fourth Proportional to 2,069,247,690,805.80, 2,855,531,423,390 and 1,155,777,989,615.40
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Solution
The fourth proportional to 2,069,247,690,805.80, 2,855,531,423,390 and 1,155,777,989,615.40 is: 1,594,956,651,382.84
Step by Step Solution
- Step 1: Write the proportion equation
2,069,247,690,805.80 : 2,855,531,423,390 = 1,155,777,989,615.40 : x - Step 2: Convert to fraction form
2,069,247,690,805.80/2,855,531,423,390 = 1,155,777,989,615.40/x - Step 3: Cross multiply
2,069,247,690,805.80x = 2,855,531,423,390 × 1,155,777,989,615.40 - Step 4: Simplify right side
2,069,247,690,805.80x = 3,300,360,367,809,295,256,911,872 - Step 5: Solve for x
x = 3,300,360,367,809,295,256,911,872/2,069,247,690,805.80 - Step 6: Final answer
x = 1,594,956,651,382.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.